OpenCV Q&A Forum - RSS feedhttp://answers.opencv.org/questions/OpenCV answersenCopyright <a href="http://www.opencv.org">OpenCV foundation</a>, 2012-2018.Fri, 07 Sep 2018 17:30:08 -0500advice to contribute on corner detection - imgprochttp://answers.opencv.org/question/198995/advice-to-contribute-on-corner-detection-imgproc/ Hello everyone,
I'm testing some features edge and corner detection algorithm with c++, and I'll work on theme for 2years again (PhD thesis).
I'm comparing some results with OpenCV functions. Since some features are not patented, I wanted to contribuate to OpenCV with their source code.
I read all pages on GitHub about "**how to contribute**" and "**coding style guide**". I started to learn the internal structure of OpenCV source code (i had not finished yet :) )
in the explaintion of how to contribute i found the folowing note :
> All new algorithms should go into
> **opencv_contrib** repository by default
.
So I was confused, do we fork the **opencv/opencv** or **opencv/opencv_contrib** ?
is opencv_contrib made to new algorithms or new files ?
thank in advance for your help guys.
*Aen*aenFri, 07 Sep 2018 17:30:08 -0500http://answers.opencv.org/question/198995/Deleting opencv github repo after successful building from sourcehttp://answers.opencv.org/question/188055/deleting-opencv-github-repo-after-successful-building-from-source/ Is it save to delete the whole opencv github repo including the build dir after cloning and building it successfully to free the disk space?
Or are there dependencies to the github repo after the installation?GustavZThu, 29 Mar 2018 05:00:01 -0500http://answers.opencv.org/question/188055/OpenCV code for single image super-resolutionhttp://answers.opencv.org/question/123087/opencv-code-for-single-image-super-resolution/ Is there any OpenCV CPP code available for **super-resolution image reconstruction** from low resolution images? Any code that runs in OpenCV of windows computer may be helpful.Helal Uddin MullahWed, 18 Jan 2017 06:03:14 -0600http://answers.opencv.org/question/123087/OPENCV and JAVA erodehttp://answers.opencv.org/question/113321/opencv-and-java-erode/ i have a problem with this code help me plz
import org.opencv.core.Core;
import org.opencv.core.CvType;
import org.opencv.core.Mat;
import org.opencv.core.Size;
import org.opencv.imgcodecs.Imgcodecs;
import org.opencv.imgproc.Imgproc;
public class main {
public static void main( String[] args ) {
try{
System.loadLibrary( Core.NATIVE_LIBRARY_NAME );
System.out.println(System.getProperty("java.library.path"));
Mat source = Imgcodecs.imread("moi.jpg", Imgcodecs.CV_LOAD_IMAGE_COLOR);
Mat destination = new Mat(source.rows(),source.cols(),source.type());
destination = source;
int erosion_size = 5;
int dilation_size = 5;
Mat element = Imgproc.getStructuringElement(Imgproc.MORPH_RECT, new Size(2*erosion_size + 1, 2*erosion_size+1));
Imgproc.erode(source, destination, element);
Imgcodecs.imwrite("erosion.jpg", destination);
source =Imgcodecs.imread("moi.jpg", Imgcodecs.CV_LOAD_IMAGE_COLOR);
destination = source;
Mat element1 = Imgproc.getStructuringElement(Imgproc.MORPH_RECT, new Size(2*dilation_size + 1, 2*dilation_size+1));
Imgproc.dilate(source, destination, element1);
Imgcodecs.imwrite("dilation.jpg", destination);
}catch (Exception e) {
System.out.println("error: " + e.getMessage());
}
}
}
OpenCV Error: Assertion failed (m.dims >= 2) in cv::Mat::Mat, file C:\builds\master_PackSlaveAddon-win32-vc12-static\opencv\modules\core\src\matrix.cpp, line 454
error: cv::Exception: C:\builds\master_PackSlaveAddon-win32-vc12-static\opencv\modules\core\src\matrix.cpp:454: error: (-215) m.dims >= 2 in function cv::Mat::Mat
sArATue, 15 Nov 2016 15:28:24 -0600http://answers.opencv.org/question/113321/Error while building OpenCV from github on Mac OSX Maverickshttp://answers.opencv.org/question/107419/error-while-building-opencv-from-github-on-mac-osx-mavericks/I am a beginner in OpenCV, using OpenCV 3.1.0 (downloaded from OpenCV.org) with Mac OS X 10.9.5 and Xcode 6.2
I was trying to run a code which needs contrib.hpp, then I found the [extra modules from Github](https://github.com/opencv/opencv_contrib).
Since the extra modules couldn't be built on OpenCV 3.1.0, I thought it will be better to have the latest version from Github, then tried to install the OpenCV with following command (it was the same way as how I've installed OpenCV 3.1.0 successfully):
> $ cd <opencv_source_directory>
> $ mkdir release
> $ cd release
> $ cmake -G "Unix Makefiles" ..
> $ make
> $ sudo make install
But there is another problem when I tried **make**:
![image description](/upfiles/14775384071685345.png)
(UPDATE text version)
> [ 44%] Building CXX object
> modules/videoio/CMakeFiles/opencv_videoio.dir/src/cap_mjpeg_decoder.cpp.o
>
> [ 44%] Building CXX object
> modules/videoio/CMakeFiles/opencv_videoio.dir/src/cap_avfoundation_mac.mm.o
>
> [ 44%] Linking CXX shared library
> ../../lib/libopencv_videoio.dylib
>
> ld: framework not found CoreImage
>
> clang: error: linker command failed
> with exit code 1 (use -v to see
> invocation)
>
> make[2]: ***
> [lib/libopencv_videoio.3.1.0.dylib]
> Error 1
>
> make[1]: ***
> [modules/videoio/CMakeFiles/opencv_videoio.dir/all]
> Error 2
>
> make: *** [all] Error 2
I thought maybe there was something wrong with cmake, so I tried the following command as well but the same error occurred with make:
> $ cmake -D CMAKE_BUILD_TYPE=RELEASE -D
> CMAKE_INSTALL_PREFIX=/usr/local ..
I've googled for the problem and it seems like I must need the **QuartzCore**, but most of people said it should be included in the Xcode. I tried both ways to figure it out but I still have no idea why I can't build the extra modules. (I think the most weird problem is that I cannot install OpenCV cloned from Github, but I just wanna show I tried this way but it wasn't successful FYI.)
I'd be most grateful for any help and suggestions!HilaryWed, 26 Oct 2016 22:39:32 -0500http://answers.opencv.org/question/107419/Running Code on Android Studio From Githubhttp://answers.opencv.org/question/104113/running-code-on-android-studio-from-github/I feel incredibly dumb asking this, but I've downloaded the code from https://github.com/betty1/FlagSpot I have version 2.1.3 of Android studio installed but don't know how to run codes on the link.Please helpAmeyatmaSun, 09 Oct 2016 01:14:33 -0500http://answers.opencv.org/question/104113/abi checkshttp://answers.opencv.org/question/95420/abi-checks/ it's currently almost impossible, to remove redundant [methods](https://github.com/Itseez/opencv/pull/6620) or [cruft like this](http://docs.opencv.org/master/dc/d0d/classcv_1_1WImage.html) from opencv's api without [breaking the infamous abi check](http://pullrequest.opencv.org/buildbot/builders/precommit_linux64/builds/6079/steps/Compare%20ABI%20dumps/logs/report-html)
is there some time-window before upping a release/version number to do this ?
do we have to live with it forever ?berakThu, 02 Jun 2016 03:19:10 -0500http://answers.opencv.org/question/95420/making effective pull requestshttp://answers.opencv.org/question/18253/making-effective-pull-requests/I've been using OpenCV over the past 3+ years. I've been an enthusiastic user, now trying to be a contributor to the project.
I'm also an newbie on Git. I know how to clone, fork, commit, push code to Github from my PC, edit code on Github. I panic when I have to do complex stuff (I just google in that case).
I have the following questions after doing **pull request** to the OpenCV project.
1. What do I do if [pull requests](http://build.opencv.org/pullrequest) shows that my code has certain **warnings**. Will that be fixed by the person by who is supposed to handle my pull request?
2. What do I do if there are **errors**. How to make a new request after fixing errors?
I both cases, do I delete my old fork, make a new fork of project, make changes again, make sure that there are no errors and request a new pull?mat_pierMon, 05 Aug 2013 19:23:21 -0500http://answers.opencv.org/question/18253/failed to make opencv.git with gcc48 on macosx maverickshttp://answers.opencv.org/question/30871/failed-to-make-opencvgit-with-gcc48-on-macosx-mavericks/I forked the repos, and clone a copy on my computer,
my OS is macosx maverick and the gcc version is 4.8
I just failed to make the fresh opencv, the error messages are as below,
It is the matter of the gcc ?
In file included from /Users/benzene/works/OpenCV/opencv/modules/core/include/opencv2/core.hpp:52:0,
from /Users/benzene/works/OpenCV/opencv/modules/highgui/include/opencv2/highgui.hpp:46,
from /Users/benzene/works/OpenCV/opencv/modules/highgui/src/precomp.hpp:45,
from /Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:43:
/Users/benzene/works/OpenCV/opencv/modules/core/include/opencv2/core/base.hpp:228:35: warning: unknown option after '#pragma GCC diagnostic' kind [-Wpragmas]
# pragma GCC diagnostic ignored "-Winvalid-noreturn"
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm: In function 'void cvDestroyAllWindows()':
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:199:23: error: expected ';' before 'in'
for(NSString *key in list) {
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:199:23: error: 'in' was not declared in this scope
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:199:26: error: expected ';' before 'list'
for(NSString *key in list) {
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:199:26: warning: for increment expression has no effect [-Wunused-value]
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm: In function 'void cvShowImage(const char*, const CvArr*)':
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:229:31: error: expected ';' before 'in'
for(NSString *key in [window sliders]) {
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:229:31: error: 'in' was not declared in this scope
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:229:42: error: expected ']' before 'sliders'
for(NSString *key in [window sliders]) {
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:229:42: error: expected ';' before 'sliders'
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:229:42: error: 'sliders' was not declared in this scope
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:229:49: error: expected ')' before ']' token
for(NSString *key in [window sliders]) {
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:229:49: error: expected primary-expression before ']' token
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:229:49: error: expected ';' before ']' token
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:229:27: warning: unused variable 'key' [-Wunused-variable]
for(NSString *key in [window sliders]) {
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm: In function 'const char* cvGetWindowName(void*)':
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:435:23: error: expected ';' before 'in'
for(NSString *key in windows) {
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:435:23: error: 'in' was not declared in this scope
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:435:26: error: expected ';' before 'windows'
for(NSString *key in windows) {
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:435:26: warning: for increment expression has no effect [-Wunused-value]
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm: In function '-[CVWindow cvSendMouseEvent:type:flags:]':
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:624:23: error: expected ';' before 'in'
for(NSString *key in [window sliders]) {
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:624:23: error: 'in' was not declared in this scope
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:624:34: error: expected ']' before 'sliders'
for(NSString *key in [window sliders]) {
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:624:34: error: expected ';' before 'sliders'
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:624:34: warning: value computed is not used [-Wunused-value]
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:624:34: warning: for increment expression has no effect [-Wunused-value]
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:624:41: error: expected ')' before ']' token
for(NSString *key in [window sliders]) {
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:624:41: error: expected primary-expression before ']' token
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:624:41: error: expected ';' before ']' token
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:624:19: warning: unused variable 'key' [-Wunused-variable]
for(NSString *key in [window sliders]) {
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm: At global scope:
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:755:1: warning: unused parameter '_value' [-Wunused-parameter]
@end
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:755:1: warning: unused parameter '_value' [-Wunused-parameter]
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:755:1: warning: unused parameter '_value' [-Wunused-parameter]
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:755:1: warning: unused parameter '_value' [-Wunused-parameter]
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:755:1: warning: unused parameter '_value' [-Wunused-parameter]
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:755:1: warning: unused parameter '_value' [-Wunused-parameter]
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm: In function '-[CVView setFrameSize:]':
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:844:23: error: expected ';' before 'in'
for(NSString *key in [cvwindow sliders]) {
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:844:23: error: 'in' was not declared in this scope
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:844:36: error: expected ']' before 'sliders'
for(NSString *key in [cvwindow sliders]) {
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:844:36: error: expected ';' before 'sliders'
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:844:36: error: 'sliders' was not declared in this scope
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:844:43: error: expected ')' before ']' token
for(NSString *key in [cvwindow sliders]) {
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:844:43: error: expected primary-expression before ']' token
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:844:43: error: expected ';' before ']' token
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:844:19: warning: unused variable 'key' [-Wunused-variable]
for(NSString *key in [cvwindow sliders]) {
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:841:9: warning: unused variable 'height' [-Wunused-variable]
int height = size.height;
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm: In function '-[CVView drawRect:]':
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:863:27: error: expected ';' before 'in'
for(NSString *key in [cvwindow sliders]) {
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:863:27: error: 'in' was not declared in this scope
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:863:40: error: expected ']' before 'sliders'
for(NSString *key in [cvwindow sliders]) {
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:863:40: error: expected ';' before 'sliders'
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:863:40: error: 'sliders' was not declared in this scope
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:863:47: error: expected ')' before ']' token
for(NSString *key in [cvwindow sliders]) {
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:863:47: error: expected primary-expression before ']' token
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:863:47: error: expected ';' before ']' token
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:863:23: warning: unused variable 'key' [-Wunused-variable]
for(NSString *key in [cvwindow sliders]) {
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:861:9: warning: unused variable 'height' [-Wunused-variable]
int height = 0;
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm: At global scope:
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:881:1: warning: unused parameter '_value' [-Wunused-parameter]
@end
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:937:1: warning: unused parameter '_value' [-Wunused-parameter]
@end
^
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:937:1: warning: unused parameter '_value' [-Wunused-parameter]
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:937:1: warning: unused parameter '_value' [-Wunused-parameter]
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:937:1: warning: unused parameter '_value' [-Wunused-parameter]
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:937:1: warning: unused parameter '_value' [-Wunused-parameter]
/Users/benzene/works/OpenCV/opencv/modules/highgui/src/window_cocoa.mm:937:1: warning: unused parameter '_value' [-Wunused-parameter]
make[2]: *** [modules/highgui/CMakeFiles/opencv_highgui.dir/src/window_cocoa.mm.o] Error 1
make[1]: *** [modules/highgui/CMakeFiles/opencv_highgui.dir/all] Error 2
make: *** [all] Error 2benzwtSun, 30 Mar 2014 11:18:33 -0500http://answers.opencv.org/question/30871/in github opencv / modules / java / generator / src / java / mising some fileshttp://answers.opencv.org/question/21886/in-github-opencv-modules-java-generator-src-java-mising-some-files/Hello,
why this files in opencv / modules / java / generator / src / java /
-highgui+VideoCapture.java
-features2d+DMatch.java
are missing in github repo?
And why VideoCapture.java only support webcam capture and not capturing from file?
Thanks
lobiThu, 03 Oct 2013 09:19:53 -0500http://answers.opencv.org/question/21886/GitHub fetch latest source code to your forked repositoryhttp://answers.opencv.org/question/18013/github-fetch-latest-source-code-to-your-forked-repository/I have added a pull request that was merged with openCV master about including link in docs for each cpp sample out there. I was planning on doing the same, but I am facing something I haven't encountered before with pull requests.
For the first set of requests I have pushed, I had made a fork in my own GitHub, then create a branch for each pull request that I wanted to make. But what I see now is that my merged fixes are not in my fork on GitHub.
However, if I pull directly the 2.4 branch source code from the Itseez github link then I do get the changes.
Is there any way of updating my master and 2.4 branch for my current fork or do I need to take a new fork if I want to continue adding stuff to the Itseez fork?StevenPuttemansThu, 01 Aug 2013 08:16:13 -0500http://answers.opencv.org/question/18013/First steps to gitHub, need some help adding bugfixeshttp://answers.opencv.org/question/16726/first-steps-to-github-need-some-help-adding-bugfixes/Let's say I would like to help out, with for example reducing the amount of bugs in documentation. I have found a bug in the [openCV dev](http://code.opencv.org/) area and am going through the steps suggested at '[How to contribute](http://code.opencv.org/projects/opencv/wiki/How_to_contribute)'.
And there I loose what to do next :) Following these instructions:
1. Choose a base branch for your work.
2. Create a new branch (with a meaningful name) from the base branch you chose.
3. Modify/add the code following our Coding Style Guide.
4. When you are done, push your branch to your GitHub fork; then create a pull request from your branch to the base branch.
First of all, how do I choose the branch for my work when using Windows & TortoiseGIT? What I did now is creating a folder on my root, rightclick 'clone git', adding my GitHub fork of openCV and setting my branch to 2.4. Then it synchronizes for some time. Is this correct?
![image description](/upfiles/13738927647849297.png)
Next I need to create a new branch, and being new to this all, I find no way in doing so. Do you do this on your system or online at the GitHub site? Can someone point me in the correct direction?
About modifying the files, in my case documentation, it seems to be LaTeX files, which I can work with, but I have trouble locating the correct files in my file structure. Where should I look for these files exactly?
Pushing back my branch when adapted, can someone guide me on how to do that exactly.
These are merely the steps I cannot find amongst the guides, leading me to problems going further. Maybe if the solutions are added here, someone could update the contribute guide.StevenPuttemansMon, 15 Jul 2013 07:55:50 -0500http://answers.opencv.org/question/16726/Github link on developer wikihttp://answers.opencv.org/question/8326/github-link-on-developer-wiki/The path for cloning openCV on the front developer wiki page has a case error.
git clone git://github.com/itseez/opencv.git
gives me a repository not found error using git bash for Windows.
Capitalizing the 'i' in itseez makes it work:
git clone git://github.com/Itseez/opencv.git
msarahanFri, 01 Mar 2013 16:17:17 -0600http://answers.opencv.org/question/8326/Problem with Github OpenCV repohttp://answers.opencv.org/question/7675/problem-with-github-opencv-repo/Hi,
I tried to clone OpenCV github repo using the command :
git clone git://code.opencv.org/opencv.git
But it is too slow (<10 KBps) and got stuck twice. I checked both in Linux and Windows.
There is no problem with my internet connection. Normal download give me a speed of >500 KBps.
So I decided to download zip file. Is it possible to extract this zip file my local folder and make this folder to work as my personnel Opencv git repo just like a cloned repo? If so how?Abid Rahman KTue, 19 Feb 2013 08:14:03 -0600http://answers.opencv.org/question/7675/Always run CMake after updating OpenCV from github?http://answers.opencv.org/question/6914/always-run-cmake-after-updating-opencv-from-github/When should I re-run cmake? for example do I need to run cmake each time I update my opencv code (pull) through Github? If not, so in what cases I should absolutely run cmake after updating opencv through Github?
I ask this, since running cmake and rebuilding all the debug and release libraries is very time consuming and I need to know when I should do this after updates!
gitgatTue, 05 Feb 2013 03:45:10 -0600http://answers.opencv.org/question/6914/